drivers/media/platform/m2m-deinterlace.c:229:15: warning: variable 'd_size' set but not used [-Wunused-but-set-variable]
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This patch removes some code duplication by using
module_platform_driver.
Signed-off-by: NSrinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

New mem-to-mem video drivers should use V4L2_CAP_VIDEO_M2M capability, rather
than ORed V4L2_CAP_VIDEO_CAPTURE and V4L2_CAP_VIDEO_OUTPUT flags, as outlined
in commit a1367f1b.
Acked-by: NJavier Martin <javier.martin@vista-silicon.com>
Signed-off-by: NSylwester Nawrocki <sylvester.nawrocki@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Acked-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: NSakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

queue_init() is always called by v4l2_m2m_ctx_init(), which allocates
a context struct v4l2_m2m_ctx with kzalloc.
Therefore, there is no need to clear vb2_queue src/dst structs.

Cc: Javier Martin <javier.martin@vista-silicon.com>
Signed-off-by: NEzequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The remaining drivers are mostly platform drivers. Name the
dir to reflect it.

It makes sense to latter break it into a few other dirs.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/m2m-deinterlace.c: In function ‘deinterlace_issue_dma’:
drivers/media/video/m2m-deinterlace.c:363:3: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 4 has type ‘dma_addr_t’ [-Wformat]
drivers/media/video/m2m-deinterlace.c:363:3: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 5 has type ‘dma_addr_t’ [-Wformat]

Cc: Javier Martin <javier.martin@vista-silicon.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Some video decoders such as tvp5150 provide separate
video fields (V4L2_FIELD_SEQ_TB/BT). This driver uses
dmaengine to convert this format to V4L2_FIELD_INTERLACED_TB/BT
(weaving) or V4L2_FIELD_NONE (line doubling) so that the
image can be displayed or processed.

Of course there will be combing effect in the image but this
can be accepted for some low quality applications.

Currently only YUV420 and YUYV formats are supported but
it can be extended later.
Signed-off-by: NJavier Martin <javier.martin@vista-silicon.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>